What’s Vulnerable › Vulnerabilities

CVE-2018-18661

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-10-26 · updated 2026-06-17
• Weakness: CWE-476

Description

An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function LZWDecode in the file tif_lzw.c.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
• libtiff: 4.0.9

References

• http://bugzilla.maptools.org/show_bug.cgi?id=2819
• http://www.securityfocus.com/bid/105762
• https://access.redhat.com/errata/RHSA-2019:2053
• https://lists.debian.org/debian-lts-announce/2019/11/msg00027.html
• https://usn.ubuntu.com/3864-1/
• http://bugzilla.maptools.org/show_bug.cgi?id=2819
• http://www.securityfocus.com/bid/105762
• https://access.redhat.com/errata/RHSA-2019:2053
• https://lists.debian.org/debian-lts-announce/2019/11/msg00027.html
• https://usn.ubuntu.com/3864-1/

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